Question

我正在使用新的iOS5 TableView样式代码，但我似乎遇到了问题。只要调用search = true函数，它就会崩溃。我认为将UITableView对象传递给configure方法并接受BadgedCell是一件好事。任何想法如何解决这个问题？

Crash says: 2011-10-25 22:21:04.973 Social[5719:707] -[__NSCFDictionary isEqualToString:]: unrecognized selector sent to instance 0x392510

2011-10-25 22:21:04.975 Social[5719:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary isEqualToString:]: unrecognized selector sent to instance 0x392510'

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(searching)
    {
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"SearchCell"];
        [self configureCell:cell atIndexPath:indexPath];
        return cell;
    }
    else
    {
        TDBadgedCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BadgedCell"];
        [self configureCell:cell atIndexPath:indexPath];
        return cell;   
    }
}

- (void)configureCell:(TDBadgedCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
    if(searching)
    {
        NSDictionary *dictionary = (NSDictionary *)[listOfItems objectAtIndex:indexPath.row];
        [cell.textLabel setText:[dictionary objectForKey:@"exerciseName"]];
        [cell.detailTextLabel setText:[dictionary objectForKey:@"muscleName"]];
        cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
        cell.detailTextLabel.text = [listOfItems objectAtIndex:indexPath.row];
    }
    else
    {
        cell.textLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:16];
        cell.textLabel.text = [[self.muscleArray objectAtIndex:indexPath.row]objectForKey:@"muscleName"];
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
    }
}

Answer 1

您将listOfItems字典作为字符串传递给单元格：

如果你使用了这个：

      NSDictionary *dictionary = (NSDictionary *)[listOfItems objectAtIndex:indexPath.row];

我知道listOfItems包含许多字典。所以当你打电话时：

    cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
    cell.detailTextLabel.text = [listOfItems objectAtIndex:indexPath.row];

您基本上是在尝试将字典分配给单元格标签。这就是为什么Xcode告诉你[__NSCFDictionary isEqualToString：]。

尝试删除这些行。

Answer 2

你需要从configure方法中删除这两行，因为如果前面三行暗示，你的'listOfItems'是一个字典列表，那么你试图将字典设置为textLabel的文本字段，会引起各种各样的问题。

cell.textLabel.text = [listOfItems objectAtIndex:indexPath.row];
cell.detailTextLabel.text = [listOfItems objectAtIndex:indexPath.row];

遇到UITableViewCell问题

2 个答案: